Waylandsink : fix bug (Null exception)

Change-Id: I21763218d0323853acffb2a84854d748da6e794d
Signed-off-by: Hyunil <hyunil46.park@samsung.com>

diff --git a/ext/wayland/gstwaylandsink.c b/ext/wayland/gstwaylandsink.c
index a07eb8e..66edd6a 100755 (executable)
--- a/ext/wayland/gstwaylandsink.c
+++ b/ext/wayland/gstwaylandsink.c
@@ -398,7 +398,7 @@ gst_wayland_sink_update_last_buffer_geometry (GstWaylandSink * sink)
   GST_DEBUG ("gstbuffer ref count is %d",
       GST_OBJECT_REFCOUNT_VALUE (sink->last_buffer));
   wlbuffer = gst_buffer_get_wl_buffer (sink->last_buffer);
-  if (wlbuffer)
+  g_return_if_fail (wlbuffer != NULL);
     wlbuffer->used_by_compositor = FALSE;
   /*need to render last buffer, reuse current GstWlBuffer */
   render_last_buffer (sink);